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Airline Reference

Aer Lingus (EI)

Irish flag carrier based in Ireland.

IATA CodeEI
ICAO CodeEIN
CallsignSHAMROCK
CountryIreland
CategoryIrish flag carrier

How EI Appears in a GDS PNR

When you see a segment line like this in a PNR, the airline code identifies Aer Lingus:

2  EI 587 Y 15JUL 2*JFKLHR HK1  800A  2000P

The two-letter code EI at the start of the segment line is Aer Lingus's IATA code — every flight segment operated by Aer Lingus in a GDS PNR (Amadeus, Sabre, Galileo, or Worldspan) begins with this code, followed by the flight number.

About Aer Lingus

Aer Lingus is a irish flag carrier, based in Ireland. Its ICAO code, EIN, is used for air traffic control and flight planning, while its radio callsign is “SHAMROCK”.

Booking Classes

Like most airlines, Aer Lingus's fare classes follow the standard GDS booking-class letter system. See our complete booking class guide for what each letter (F, J, Y, and so on) typically means.

Frequently Asked Questions

What is Aer Lingus's IATA code?

Aer Lingus's IATA code is EI. This two-letter code appears at the start of every flight segment operated by Aer Lingus in a GDS PNR.

What is Aer Lingus's ICAO code?

Aer Lingus's ICAO code is EIN. The ICAO code is a separate, usually three-letter identifier used mainly in air traffic control and flight planning, distinct from the IATA code travel agents see in a PNR.

How do I convert a Aer Lingus PNR to an itinerary?

Paste the raw PNR text into PNRGenius and it will automatically detect Aer Lingus's segments (marked with the EI code) and build a clean, client-ready itinerary in seconds.

Convert a Aer Lingus PNR to a Clean Itinerary

Paste any PNR with a EI segment and get a client-ready itinerary in seconds — free, no signup.

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